dotMemory 2016.2 Help

Sunburst Chart

Sunburst Chart is a graphical representation of the Group by Dominators | Tree view.
In this view, the dominators hierarchy in an object set is shown using the sunburst chart.
The more memory a dominator retains, the larger the central angle.

Use the chart to evaluate largest structures and determine objects that are crucial for your app in just one glance.

Consider the example for better understanding of
Sunburst Chart.

As you can see, to analyze the dominators Tree
above, you have to expand its nodes and interpret the numbers in the
Bytes column. In contrast, just a glance at the
Sunburst Chart allows you to determine main dominators and largest structures in your app.
A click on a dominator you're interested in will show you its domination path (on the right).

For the convenience, when a group of dominators is too small to be displayed in the current scale, the chart shows
them as one Smaller nodes arc.

Zooming In and Out

If you want to take a more detailed look at a certain dominator subtree, you can change the scale of the chart.
To zoom in on a dominator, double-click on the corresponding arc or select
Zoom in from its context menu.
The dominator will become a root of the chart.
To zoom back out, click on the center of the chart.

What Can I Analyze Next?

As well as in dominators Tree, you can select the following subjects for further analysis:

Exclusively retained objects
To open objects retained by a particular dominator, do one of the following:

Double-click on the corresponding arc in the chart.

Select the dominator by clicking on the corresponding arc and click the
Open Objects Retained by Selection button.

Open the context menu of the dominator by right-clicking on the arc and choose the
Open objects retained by this set menu item.

After this, the
Retained by [type_name]
subject will be added to Analysis path and the list of dominated objects will be displayed in the
Type List view.

Dominators
To open object set consisting of a particular dominator, do one of the following:

Select the dominator by clicking on the corresponding arc and click the
Open Selection button.

Open the context menu of the dominator by right-clicking on the arc and choose the
Open this object set menu item.

After this, the Dominators [type_name]
subject will be added to the Analysis Path and the list of objects will be displayed in the
Type List view.